"Medieval city fortification"
Walls-Gates-Towers Tip by HORSCHECK

Favorite thing: In the past the Old Town (Vanalinn) of Tallinn was surrounded by a 4 km picturesque but strong medieval wall with more than 40 turrets.Nowadays about 2.5 km of the wall and 26 turrets are still existing. Some of the turrets can be visited and house museums or cafes.